Chemistry AS - Group 2 revision questions

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Everything you need to know about group 2 AQA AS level chemistry from the textbook.

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Gracie

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Chemistry AS - Group 2 revision questions


Froggy Jumps Chemistry AS - Group 2 revision questionsVersion en ligne Everything you need to know about group 2 AQA AS level chemistry from the textbook. par Gracie 1 What oxidation state do group 2 elements have? a 2+ b 3+ c 2- 2 Do group 2 elements have high or low melting and boiling points? a very high melting and boiling points b low melting and boiling points c high melting and boiling points 3 What can barium sulfate be used for? a medical screening (intestines) b heart disease c agriculture 4 What substance can neutralise stomach acid a magnesium hydroxide b barium sulfate c aluminium oxide 5 How does the atomic radius of the elements change as you go down group 2? a stays the same b decreases c increases 6 What happens to the ionisation energies as you go down group 2? a 1st ionisation energy decreases, 2nd increases b both decrease c 2nd ionisation increases, 1st stays the same 7 True or false: group 2 sulfates become more soluble down the group a idk help b true c false 8 Which type of bond decreases in strength down group 2? a metallic b covalent c dative covalent 9 What happens to the melting and boiling points as you move down group 2? a stay the same b increase c decrease 10 What can calcium compounds be used for? a making limestone to raise the ph of soil b fertilisers in agriculture c medical diagnosis 11 Which element's hydroxide is the most soluble? a magnesium b strontium c calcium 12 What happens to group 2 hydroxides as you move down the group? a become more soluble b become less reactive c become less soluble 13 True of false: reactivity of group 2 elements with water increases down the group a group 2 elements aren't reactive with water b false c true 14 Which best describes the physical properties of group 2 elements? a shiny in air b ductile and malleable c really hard and can't be cut with a knife 15 Which shows the right equation for magnesium with steam? a MgO(s) + H2O(g) --> MgO3(s) + OH(g) b Mg(l) + H2O(g) --> MgO(l) + H2(g) c Mg(s) + H2O(g) --> MgO(s) + H2(g) 16 Why are group 2 elements known as alkali metals? a they were named after the scientist who discovered them b their oxides and hydroxides are alkaline c they're not, they're alkali gases 17 What happens to the reactivity of the metals as you go up group 2? a become less reactive b become more reactive c reactivity doesn't change 18 How does magnesium react with cold water? a very slowly b average speed c rapidly 19 What is the general equation for a group 2 metal reacting with water? a M(g) + H2O(l) --> M(OH)2(aq) b M(s) + 2H2O(l) --> M(OH)2(aq) c M(s) + 2H2O(l) --> M(OH)2(aq) + O2(g) 20 Describe the reaction between magnesium and steam a can't react b slow c rapid 21 Which metal is used to extract titanium? a strontium b barium c magnesium 22 Why can't titanium be extracted with carbon? a they don't react b titanium carbonate is formed which is brittle c titanium carbide is formed which is brittle 23 Give the equation for the extraction of titanium a TiCl4(l) + 2Ba(s) --> 2BaCl2(s) + Ti(s) b TiCl4(l) + 2Mg(s) --> 2MgCl2(s) + Ti(s) c TiF4(l) + 2Mg(s) --> 2MgF2(s) + Ti(s)

Chemistry AS - Group 2 revision questions

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Chemistry AS - Group 2 revision questionsVersion en ligne

par Gracie

What oxidation state do group 2 elements have?

Do group 2 elements have high or low melting and boiling points?

What can barium sulfate be used for?

What substance can neutralise stomach acid

How does the atomic radius of the elements change as you go down group 2?

What happens to the ionisation energies as you go down group 2?

True or false: group 2 sulfates become more soluble down the group

Which type of bond decreases in strength down group 2?

What happens to the melting and boiling points as you move down group 2?

What can calcium compounds be used for?

Which element's hydroxide is the most soluble?

What happens to group 2 hydroxides as you move down the group?

True of false: reactivity of group 2 elements with water increases down the group

Which best describes the physical properties of group 2 elements?

Which shows the right equation for magnesium with steam?

Why are group 2 elements known as alkali metals?

What happens to the reactivity of the metals as you go up group 2?

How does magnesium react with cold water?

What is the general equation for a group 2 metal reacting with water?

Describe the reaction between magnesium and steam

Which metal is used to extract titanium?

Why can't titanium be extracted with carbon?

Give the equation for the extraction of titanium